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Re: [Qemu-devel] [PATCH v4 3/5] acpi: pc: add fw_cfg device node to ssdt


From: Gabriel L. Somlo
Subject: Re: [Qemu-devel] [PATCH v4 3/5] acpi: pc: add fw_cfg device node to ssdt
Date: Wed, 30 Sep 2015 10:16:31 -0400
User-agent: Mutt/1.5.23 (2014-03-12)

On Wed, Sep 30, 2015 at 03:01:13PM +0200, Paolo Bonzini wrote:
> 
> 
> On 30/09/2015 02:18, Gabriel L. Somlo wrote:
> > Yes, we're OK. Throughout it all I *meant* to write 0x0B (bee), but my
> > brain sometimes mistakenly makes me write 0x08 (eight) instead. Sorry for
> > the confusion... :)
> 
> IIRC from the pvpanic trainwreck, Windows XP and 2003 always complain
> even for 0x0B about a missing driver.

Don't have 2003, but dug up and started my old xp_sp3 image, and
Device Manager only complains when _STA defaults to 0x0f (i.e. when
I omit generating it in aml completely).

With _STA set to 0x0b (like in the latest version of the patch), the
fw_cfg device does not show up with a missing device complaint on xp.

Thanks,
--Gabriel



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